| Acronym | Definition |
|---|
| OMSL➣Office of Mine Safety and Licensing (Kentucky) |
| OMSL➣Oil Management Services Ltd. (Bermuda) |
| OMSL➣Optimum Manufacturing Solutions Ltd. (British Columbia, Canada) |
| OMSL➣Office of Medical Service Learning (Indiana University) |
| OMSL➣Ottawa Mixed Softball League (Ottawa, Ontario, Canada) |
| OMSL➣Old Mutual Securities Limited (UK) |